The influence of environmental tax rates on the Levelized cost of heat on the example of organic and biofuels boilers in UkraineValentyna Stanytsina, Volodymyr Artemchuk, Olga Bogoslavska, Iryna Zinovieva and Nataliia RideiE3S Web Conf., 280 (2021) 09012DOI: https://doi.org/10.1051/e3sconf/202128009012